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How do I stop the rain from coming down to my patio from my deck above?

I had someone build a patio/deck from my 2nd story home. The problem that I am having is I cannot enjoy my patio year round with the rain coming through the floor boards from my patio desk above. Is there any way to place something between the 1/2" gaps in the wood to eleminate this problem without spending a lot of money on redoing the floor of the patio deck?

Thank you BigWalt. I live in So California so not much weather change. I did buy outdoor carpet but it doesn't last long because of the hot sun also still leaks water through. I also thought about the temporary awnings but not sure it will withstand the high winds that we often get. No other ideas?:(

Thank you BigWalt. I live in So California so not much weather change. I did buy outdoor carpet but it doesn't last long because of the hot sun also still leaks water through. I also thought about the temporary awnings but not sure it will withstand the high winds that we often get. No other ideas?:(

I do not know California standards on home construction. I'm from NC area, If I added any more information then it will be huge problem because California have strict standards on home construction. I would wait for west coast member [ A_Spruce ] here adding their 2¢.

I don't know if this would be approved for your area, but what about installing solid soffit under the deck. It would catch the drips and if you slope it correctly the water would run to the outside edge of the patio underneath.

Thank you that is definitely a thought. I have also found various vinal sheeting that loops under and stappled and again has to be angled properly. Then that part is covered with a new cealing. Problem with this is it is more than i want to spend.

I also found DuraFlash Vinyl Flashing. It seams inexpensive and can be rolled out on the topside of the deck. They claim that it never wears, tears, etc...I thought i could put outdoor carpet over this for appearance.

What are your thoughts on this product and does anyone think that this will actually work?